Looking for a job

Kostiantyn Boiko

@kostiantynboiko

Senior React Native Developer at PlayMe Studio building a cross-platform financial literacy app with CI/CD pipelines and OTA updates.

Ukraine

Message

At PlayMe Studio, I'm developing a cross-platform financial literacy mobile app and setting up CI/CD pipelines with GitHub Actions and EAS builds. I also release and support apps in the App Store and Google Play.

At Onix-Systems, I worked on React and React Native projects for web, mobile, and Windows, including a UWP app based on React Native for Windows. I took part in presales, estimated more than 10 projects, and released and supported a UWP app across the App Store, Google Play, and Microsoft Store.

I mentored junior engineers and shared how CodePush can distribute updates without new builds in an internal React meetup. I also integrated KYC systems, configured Rollbar and Storybook, and connected AI coding agents with tools such as Linear, GitHub, and Figma through MCP.

Experience

Work history, roles, and key accomplishments

Current

Senior React Native Developer

Current

PlayMe Studio

Dec 2025 - Present (10 months)

Developing a cross-platform financial literacy mobile app, setting up CI/CD pipelines with GitHub Actions, EAS builds, and OTA updates, and releasing and supporting apps in App Store and Google Play.

React Native CI CD GitHub Actions EAS OTA Updates Tanstack Query Zustand Feature Sliced Architecture

React/React Native Developer

Onix-Systems

Jul 2020 - Dec 2025 (5 years 5 months)

Communicated regularly with customers, participated in pre-sale projects, estimated and developed them, released and supported UWP apps in App Store, Google Play, and Microsoft Store, and mentored 5 junior engineers.

React React Native Universal Windows Platform Mentorship Pre Sales Estimation